Epson RS-353, Service Manual

Page: 93 / 130

1. Insert papers
light bulb R ar
* Do not use a cc
circuitry or
2. Perform steps (
that the grid of
elements) is
(1) Loosen light
(2) Insert a flat-top
and move it
temporarily lock
(3) Insert a flat-top
to attain comple
At this point, ma
(4) Loosen lower
Insert a flat-top
position where t
Temporarily
(6) After
screen top,
hardware
DA F
5. After completing
adhesive force
the screen
position can be i
bulb G focus
lack paper is desirable) that will shield light perfectly in between the
light bulb B (ray’s outlet).
or mirror to shield light (to preclude possible shorts in the
due to diffused reflected ray).
to (6) shown below to adjust the position of the light bulb G so
screen pattern (the pattern generated by the liquid crystal picture
G fixing screws “A”, and
into the adjustment slot on the lower adjusting plate
and forth to attain complete focus on the top of screen, then
“A”
crewdriver into the adjustment slot and move it back and forth
focus on the bottom of screen, then temporarily lock screw “C”.
sure that the top portion of the projection screen is
in focus.
justing plate fixing screws and “G”.
into the adjustment slot and manipulate it to find a
left and right portions of the projection screen are in focus.
and
that focusing is established over the entire screen (projection
left, and right portions), tighten screws “A/B/C/F/G” with a
2.5 kg.cm = 2.16
 B
5-9
Figure 5-l 0
he light bulb G adjustment, attach adhesive tape with a small
tape that will not contaminate the screen when it is put on and off
at four corners of the projection screen so that the projection
This operation is usuful for alignment adjustment.